Publications

Refereed paper

 

  1. Chi-Kang Li, Marco Piccardo, Li-Shuo Lu, Svitlana Mayboroda, Lucio Martinelli, Claude Weisbuch, Marcel Filoche, Yuh-Renn Wu*, ``Localization landscape theory of disorder in semiconductors III: Application to transport and radiative recombination in light emitting diodes.'', Phys. Rev. B, 95, 144206 , April, 2017. DOI: 10.1103/PhysRevB.95.144206
  2. Marco Piccardo, Chi-Kang Li, Yuh-Renn Wu, James S. Speck, Bastien Bonef, Bob Farrell, Marcel Filoche, Lucio Martinelli, Jacques Peretti, and Claude Weisbuch, ``Localization landscape theory of disorder in semiconductors II: Urbach tails of disordered quantum well layer'', Phys. Rev. B, 95, 144205, April, 2017. DOI: 10.1103/PhysRevB.95.144205
  3. Marcel Filoche, Marco Piccardo, Yuh-Renn Wu, Chi-Kang Li, Claude Weisbuch, and Svitlana Mayboroda, `` Localization landscape theory of disorder in semiconductors I: Theory and modeling'', Phys. Rev. B, 95, 144204, April, 2017. DOI: 10.1103/PhysRevB.95.144204
  4. Jau-Jiun Huang, Lik-Ka Yun, Te-Jen Kung, Chi-Lin Chen, Jiun-Haw Lee, Yuh-Renn Wu, Tien-Lung Chiu, Pi-Tai Chou, and Man-kit Leung*, ``Networking hole and electron hopping paths by Y-shaped host molecules: promoting blue phosphorescent organic light emitting diodes'', J. Mater. Chem. C, 5, 3600-3608, 2017. DOI: 10.1039/C6TC05538A
  5. Heng Li, Hui-Yu Cheng, Wei-Liang Chen, Yi-Hsin Huang, Chi-Kang Li, Chiao-Yun Chang, Yuh-Renn Wu, Tien-Chang Lu*, and Yu-Ming Chang*, ``Three dimensional characterization of GaN-based light emitting diode grown on patterned sapphire substrate by confocal Raman and photoluminescence spectromicroscopy'', Scientific Reports 7, 45519 (2017) DOI:10.1038/srep45519.
  6. Shin-Yi Ho, Chun-Hsun Lee, An-Jye Tzou, Hao-Chung Kuo, Yuh-Renn Wu, and JianJang Huang, ``Suppression of Current Collapse in Enhancement Mode GaN-Based HEMTs Using an AlGaN/GaN/AlGaN Double Heterostructure,'' in IEEE Transactions on Electron Devices, vol. 64, no. 4, pp. 1505-1510, April 2017. DOI: 10.1109/TED.2017.2657683
  7. Chih-Hsien Cheng, Tzu-Wei Huang, Chung-Lun Wu, Mu Ku Chen, Cheng Hung Chu, Yuh-Renn Wu, Min-Hsiung Shih, Chao-Kuei Lee, Hao-Chung Kuo, Din-Ping Tsai, and Gong-Ru Lin*, ``Transferring the Bendable Substrateless GaN LED Grown on Thin C-rich SiC Buffer Layer to Flexible Dielectric and Metallic Plate'', J. Mater. Chem.C, 5, 607-617, (2017). DOI: 10.1039/C6TC04318F
  8. Shuo-Fan Chen, Yuh-Renn Wu*, ``Electronic Properties of MoS2 Nanoribbon under Strain Using Tight Binding Metho'', Physica Status Solidi B: Basic Solid State Physics, 1600565 (2017). DOI 10.1002/pssb.201600565
  9. Chao-Wei Wu and Yuh-Renn Wu*, ``Optimization of thermoelectric properties for rough nano-ridge GaAs/AlAs superlattice structure'', AIP Advances 6, 115201 2016, DOI: 10.1063/1.4967202
  10. David Browne*, Micha Fireman, Baishakhi Mazumder, Leah Kuritzky, Yuh-Renn Wu, and James Speck, ``Vertical Transport through AlGaN Barriers in Heterostructures Grown by Ammonia Molecular Beam Epitaxy and Metalorganic Chemical Vapor Deposition'', Semicond. Sci. Technol., 32, p025010, (2017). DOI:10.1088/1361-6641/32/2/025010
  11. H. T. Chen; C. Y. Su; C. G. Tu; Y. F. Yao; C. H. Lin; Y. R. Wu; Y. W. Kiang; C. C. Yang*, ``Combining High Hole Concentration in p-GaN and High Mobility in u-GaN for High p-type Conductivity in a p-GaN/u-GaN Alternating-layer Nanostructure'', IEEE Transactions on Electron Devices , 64 (1), 115-120, 2017. DOI: 10.1109/TED.2016.2631148
  12. Kuan-Ying Ho, Chi-Kang Li, Hong-Jhang Syu, Yi Lai, Ching-Fuh Lin and Yuh-Renn Wu*,,``Analysis of the PEDOT:PSS/Si nanowire hybrid solar cell with a tail state model'', J. Appl. Phys., 120, 215501, (2016). DOI:10.1063/1.4970827
  13. Chi-Kang Li, Chen-Kuo Wu, Chung-Cheng Hsu, Li-Shuo Lu, Heng Li, Tien-Chang Lu, and Yuh-Renn Wu*, "3D numerical modeling of the carrier transport and radiative efficiency for InGaN/GaN light emitting diodes with V-shaped pits", AIP Advance, 6, p055208, (2016). DOI:10.1063/1.4950771
  14. Xinhui Chen, Kuan-Ying Ho, and Yuh-Renn Wu*,"Modeling and Optimization of p-AlGaN super lattice structure as the p-contact and transparent layerˇ¨, Opt. Express 23, 32367-32376 (2015). DOI:10.1364/OE.23.032367
  15. David A. Browne, Baishakhi Mazumder, Yuh-Renn Wu, and James S. Speck, ˇ§Electron Transport in Unipolar InGaN/GaN Multiple Quantum Well Structures Grown by NH3 Molecular Beam Epitaxyˇ¨, J. Appl. Phys., 117, 185703, 2015. SCI papers. DOI: 10.1063/1.4919750
  16. Chih-Chien Pan*, Qimin Yan, Houqiang Fu, Yuji Zhao, Yuh-Renn Wu, Chris Van de Walle, Shuji Nakamura, Steven P. DenBaars, ˇ§High optical power and low-efficiency droop blue light-emitting diodes using compositionally step-graded InGaN barrierˇ¨ Electronics Letters, vol. 51, no. 15, pp. 1187-1189, 2015. SCI papers. DOI: 10.1049/el.2015.1647.
  17. H.H.Wang, J. S. Tian, C. Y. Chen, H. H. Huang, Y. C. Yeh, P. Y. Deng, L. Chang ; Y. H. Chu, Y. R. Wu, J. H. He*, "The Effect of Tensile Strain on Optical Anisotropy and Exciton of m-Plane ZnO," in IEEE Photonics Journal, vol. 7, no. 2, pp. 1-8, April 2015. DOI: 10.1109/JPHOT.2015.2415672
  18. Chen-Kuo Wu, Chi-Kang Li, and Yuh-Renn Wu*, ˇ§Percolation transport study in nitride based LEDby considering the random alloy fluctuationˇ¨, Journal of Computational Electronics, 9 pages, 14, pp416-424, 2015. , SCI papers. DOI 10.1007/s10825-015-0688-y
  19. Finella Lee, Liang-Yu Su, Chih-Hao Wang, Yuh-Renn Wu, and Jianjang Huang*, ˇ§Impact of Gate Metal on the Performance of p-GaN/AlGaN/GaN High Electron Mobility Transistorsˇ¨, IEEE Electron Device Letters, 36, pp232-234, 2015. (March), SCI papers. DOI: 10.1109/LED.2015.2395454
  20. Tsung-Jui Yang, Ravi Shivaraman , James S. Speck, and Yuh-Renn Wu*, "The Influence of Random Indium Alloy fluctuations in Indium Gallium Nitride Quantum Wells on the Device Behavior", J. Appl. Phys, 116, 113104, 2014. DOI:10.1063/1.4896103
  21. Chao-Wei Wu and Yuh-Renn Wu* , "Thermoelectric characteristic of the rough InN/GaN core-shell nanowires", J. Appl. Phys. 16, 103707 , 2014. DOI:10.1063/1.4894510
  22. Hui-Hsin Hsiao, Hung-Chun Chang, and Yuh-Renn Wu* , "Design of Anti-ring Back Reflectors for Thin-Film Solar Cells Based on Three-Dimensional Optical and Electrical Modeling", Appl. Phys. Lett., 105, 061108 2014. Doi:10.1063/1.4893025
  23. W. C. Lai*, M. H. Ma, B. K. Lin, B. H. Hsieh, Y. R. Wu, and J. K. Sheu, ˇ§Photoelectrochemical hydrogen generation with linear gradient Al composition dodecagon faceted AlGaN/n-GaN electrodeˇ¨, Optics Express, 22, S7, pp. A1853-A1861, 2014. DOI: 10.1364/OE.22.0A1853
  24. K. Y. Lai, G. J. Lin, Yuh-Renn Wu, Meng-Lun Tsai, and Jr-Hau He*, "Efficiency dip observed with InGaN-based multiple quantum well solar cells", Optics Express, 22, S7, pp. A1753-A1760, 2014. DOI: 10.1364/OE.22.0A1753
  25. Hsiang-Wei Li, Yu-Feng Yin, Chen-Yu Chang, Chen-Hung Tsai, Yen-Hsiang Hsu, Da-Wei Lin, Yuh-Renn Wu, Hao-Chung Kuo, and Jian Jang Huang, "Mechanisms of the Asymmetric Light Output Enhancements in a-Plane GaN Light-Emitting Diodes With Photonic Crystals", IEEE Journal of Quantum Electronics, 50,12, pp951-956, 2014. DOI 10.1109/JQE.2014.2362552
  26. Yuji Zhao, Robert M. Farrell, Yuh-Renn Wu, and James S. Speck*,"Valence band states and polarized optical emission from nonpolar and semipolar III-nitride quantum well optoelectronic devices" , Jpn. J. Appl. Phys.ˇVSelected Topics in Applied Physics, invited review paper, 53, p100206 , 2014
  27. Yen Chou, Hsiang-Wei Li, Yu-Feng Yin, Yu-Ting Wang, Yen-Chen Lin, Da-Wei Lin, Yuh-Renn Wu, Hao-Chung Kuo, and Jian Jang Huang*,"Polarization ratio enhancement of a-plane GaN light emitting diodes by asymmetric two-dimensional photonic crystals", J. Appl. Phys., 115, 193107, 2014. DOI 10.1063/1.4876655
  28. Erin C. H. Kyle, Stephen W. Kaun, Peter G. Burke, Feng Wu, Yuh-Renn Wu, and James S. Speck*, "High-electron-mobility GaN grown on free standing GaN templates by ammonia-based molecular beam epitaxy" J. Appl. Phys., 115, 193702, 2014. DOI:10.1063/1.4874735
  29. Chun-Yao Lee, Chun-Ming Yeh, Yung-Tsung Liu, Chia-Ming Fan, Chien-Fu Huang, and Yuh-Renn Wu*, "The optimization study of textured a-Si:H solar cells", J. Renewable and Sustainable Energy 6, 023111 2014. DOI: 10.1063/1.4870993
  30. Chi-Kang Li, Maarten Rosmeulen, Eddy Simoen, and Yuh-Renn Wu*, "Study on the Optimization for Current Spreading Effect of Lateral GaN/InGaN LEDs", IEEE Trans Electron Dev., 61, pp511-517, 2014. DOI: 10.1109/TED.2013.2294534
  31. Yuji Zhao, Feng Wu, Tsung-Jui Yang, Yuh-Renn Wu, Shuji Nakamura, and James S. Speck, "Atomic-scale nanofacet structure in semipolar (20-2-1) and (20-21) InGaN single quantum wells", Appl. Phys. Express, 7, p025503. 2014. DOI: 10.7567/APEX.7.025503
  32. Jheng-Han Lee, Zong-Ming Wu, Yu-Min Liao, Yuh-Renn Wu, Shih-Yen Lin, and Si-Chen Lee*, "The Operation Principle of the Well in Quantum Dot stack Infrared Photodetector", J. Appl. Phys., 14, 244504, 2013. DOI 10.1063/1.4849875
  33. Chi-Kang Li, Po-Chun Yeh, Jeng-Wei Yu, Lung-Han Peng, and Yuh-Renn Wu*, ''Scaling Performance of Ga2O3/GaN Nanowire Field Effect Transistor'', Journal of Applied Physics, 114, 163706, 2013. DOI: 10.1063/1.4827190
  34. J. Pal, M. A. Migliorato*, C.-K. Li, Y.-R. Wu, B. G. Crutchley, I. P. Marko, and S. J. Sweeney, ''Enhancement of Efficiency of InGaN-based LEDs through Strain and Piezoelectric Field Management'', Journal of Applied Physics, 114, 073104, 2013. DOI: 10.1063/1.4818794
  35. Chin-Yi Chen and Yuh-Renn Wu*,''Studying the Short Channel Effect in the Scaling of the AlGaN/GaN Nanowire Transistors'', J. Appl. Phys., 113, p214501, 2013. DOI 10.1063/1.4808241
  36. Yang Kuo, Wen-Yen Chang, Horng-Shyang Chen, Yuh-Renn Wu, C. C. Yang, and Yean-Woei Kiang*, ``Surface-plasmon-coupled emission enhancement of a quantum well with a metal nanoparticle embedded in a light-emitting diode,'' J. Opt. Soc. Am. B, 30, 10, 2599-2606, Oct. 2013. DOI: 10.1364/JOSAB.30.002599
  37. Chi-Kang Li, Hung-Chih Yang, Ta-Cheng Hsu, Yu-Jiun Shen, Ai-Sen Liu, and Yuh-Renn Wu*,''Three Dimensional Numerical Study on the Effciency of a Core-shell InGaN/GaNMultiple Quantum Well Nanowire light-emitting diodes'', J. Appl. Phys., 113, 183104, 2013. DOI 10.1063/1.4804415
  38. Kai-Lun Chi, Shu-Ting Yeh, Yu-Hsiang Yeh, Kun-Yan Lin, Jin-Wei Shi*, Yuh-Renn Wu*, M. L. Lee, and J.-K. Sheu, ''GaN-Based Dual Color Light-Emitting-Diodes with P-Type Insertion Layer for Controlling the Ratio of Two-Color Intensities'', IEEE Trans Electron Dev., 60, pp2821-2826, 2013. DOI 10.1109/TED.2013.2272803
  39. D. N. Nath, Z. C. Yang, C.-Y. Lee, P.S. Park, Y.-R Wu, and S. Rajan, ''Unipolar Vertical Transport in GaN/AlGaN/GaN Heterostructures'' Applied Physics Letter, 103, 022102, 2013. DOI: 10.1063/1.4813309
  40. Yoshinobu Kawaguchi, Chia-Yen Huang, Yuh-Renn Wu, Yuji Zhao, Steven P. DenBaars, and Shuji Nakamura, ''Semipolar (20-21) Single-Quantum-Well Red Light-Emitting Diodes with a Low Forward Voltage'', JJAP, 52, 08JC08, 2013. 10.7567/JJAP.52.08JC08
  41. Hsun-Wen Wang, Pei-Chen Yu*, Yuh-Renn Wu*, Hao-Chung Kuo, and Shiuan-Huei Lin, ''Projected efficiency of polarization matched p-InxGa1-xN/i-InyGa1-yN/n-GaN double heterojunction solar cells'', IEEE Journal of photovoltaic, 3, pp985-990, 2013. DOI 10.1109/JPHOTOV.2013.2252953
  42. Liang-Yi Chen, Chi-Kang Li, Jin-Yi Tan, Li-Chuan Huang, Yuh-Renn Wu and JianJang Huang*, ''On the Efficiency Decrease of the GaN Light-Emitting Nanorod Arrays'', IEEE Journal of Quantum Electronics, 49, 2, pp224-231, 2013. DOI: 10.1109/JQE.2013.2237885
  43. Pradeep Senanayake*, Chung-Hong Hung, Alan Farrell, David A. Ramirez, Joshua Shapiro, Chi-Kang Li, Yuh-Renn Wu, Majeed M. Hayat, and Diana L. Huffaker,"Thin 3D Multiplication Regions in Plasmonically Enhanced Nanopillar Avalanche Detectors", Nano Letters, 12, pp6448-6452, 2012 DOI:10.1021/nl303837y
  44. Jordan Reed Lang, Nathan G. Young, Robert M. Farrell, Yuh-Renn Wu, and James S. Speck, "Carrier escape mechanism dependence on barrier thickness and temperature in InGaN quantum well solar cells", Applied Physics Letter, 101, p181105, 2012. DOI: 10.1063/1.4765068
  45. Jeng-Wei Yu, Po-Chun Yeh, Sung-Li Wang, Yuh-Renn Wu, Ming-Hua Mao, Hao-Hsiung Lin, and Lung-Han Peng, "Short channel effects on gallium nitride/gallium oxide nanowire transistors" Applied Physics Letter, 101, p183501, 2012. DOI:10.1063/1.4764554"
  46. Ting-Gang Chen, Peichen Yu*, Shih-Wei Chen, Feng-Yu Chang, Bo-Yu Huang, Yu-Chih Cheng1, Jui-Chung Hsiao2, Chi-Kang Li and Yuh-Renn Wu, "Characteristics of large-scale nanohole arrays for thin-silicon photovoltaics", Prog. Photovolt: Res., Published on line, (2012) DOI: 10.1002/pip.2291
  47. Ingrid L. Koslow*, Matthew T. Hardy, Po Shan Hsu, Po-Yuan Dang, Feng Wu, Alexey Romanov, Yuh-Renn Wu, Erin C. Young, Shuji Nakamura, James S. Speck, and Steven P. DenBaars, "(11-22) Long Wavelength Light Emitting Diodes Grown on Stress Relaxed InGaN Buffer Layers", Applied Physics Letter, 101, 121106 (2012). DOI: 10.1063/1.4753949
  48. Yuh-Renn Wu*, Ravi Shivaraman, Kuang-Chung Wang, and James S. Speck, "Analyzing the physical properties of InGaN multiple quantum well light emitting diodes from nano scale structure", Applied Physics Letter, 101, 083505, 2012.DOI:10.1063/1.4747532
  49. Chang-Pei Wang and Yuh-Renn Wu*,"Study of Optical Anisotropy in Nonpolar and Semipolar AlGaN Quantum Well Deep Ultraviolet Light Emission Dio", Journal of Applied Physics, 112, 033104, 2012. DOI:10.1063/1.4742050
  50. Yoshiu Kawaguchi*, Chia-Yen Huang, Yuh-Renn Wu, Qimin Yan, Chih-Chien Pan, Yuji Zhao, Shinichi Tanaka, Kenji Fujito, Daniel Feezell, Chris G. Van de Walle, Steven P. DenBaars, and Shuji Nakamura , "Influence of polarity on Carrier Transports of Semipolar Multiple-Quantum-Well (20-2-1) and (20-21) Light-Emitting Diodes", Appl. Phys. Lett. 100, 231110 (2012) DOI:10.1063/1.4726106
  51. Chi-Kang Li and Yuh-Renn Wu*, "Study on the Current Spreading Effect and Light Extraction Enhancement of Vertical GaN/InGaN LEDs", IEEE Trans Electron Dev., 59 (2), pp400-407, (2012), DOI: 10.1109/TED.2011.2176132 2013, 2014 JCR highly cited papers (top 1%) of this journal.
  52. H.-A. Chin, I-C. Cheng*, C.-K. Li, Y.-R. Wu, J. Z. Chen, W.-S. Lu, W.-L. Lee, "The electrical properties of modulation-doped rf-sputtered polycrystalline MgZnO/ZnO heterostructures", Journal of Physics D: Applied Physic, 44, 455101, (2011). DOI:10.1088/0022-3727/44/45/455101
  53. Jeng-Wei Yu , Chi-Kang Li , C. Y. Chen , Yuh-Renn Wu , Li-Jen Chou, and Lung-Han Peng*, "Transport properties of gallium nitride nanowire metal-oxide-semiconductor transistor", Appl. Phys. Lett, 99, 152108, (2011). DOI:10.1063/1.3651332
  54. Liang-Yi Chen, Hung-Hsun Huang, Chun-Hsiang Chang, Ying-Yuan Huang, Yuh-Renn Wu, and JianJang Huang*, "Investigation of the strain induced optical transition energy shift of the GaN nanorod light emitting diode arrays", Optics Express, 19, pp. A900-A907, (2011). DOI:10.1364/OE.19.00A900
  55. Hung-Hsun Huang, I-Lin Lu and Yuh-Renn Wu*,"Study of thermoelectric properties of indium nitride nanowire", Physica status solidi (a), 208, pp1562-2565, 2011. (SCI) DOI 10.1002/pssa.201001047
  56. I-Lin Lu, Yuh-Renn Wu*, and Jasprit Singh, "A Study of the Role of Dislocation Density, Indium Composition on the Radiative Efficiency in InGaN/GaN Polar and Nonpolar LEDs using Drift-diffusion Coupled with a Monte Carlo Method", Journal of Applied Physics, 108, No. 12, 124508, Dec. , 2010 DOI: 10.1063/1.3524544 .
  57. Yu-Hsuan Sun, Yun-Wei Cheng, Szu-Chieh Wang, Ying-Yuan Huang, Chun-Hsiang Chang, Sheng-Chieh Yang, Liang-Yi Chen, Min-Yung Ke, Chi-Kang Li, Yuh-Renn Wu, and JianJang Huang* , "Optical Properties of the Partially Strain Relaxed InGaN/GaN Light-Emitting Diodes Induced by P-type GaN Surface Texturing", Electron Dev. Lett., 32, pp182-184, 2011. DOI: 10.1109/LED.2010.2093503
  58. Po-Yuan Dang and Yuh-Renn Wu*, "Optical Polarization Anisotropy of Tensile Strained InGaN/AlInN Quantum Wells for TM Mode Lasers", J. Appl. Phys., 108, 083108, 2010. DOI: 10.1063/1.3498805
  59. Huei-Min Huang, Hung-Hsun Huang, Yuh-Renn Wu*, and Tien-Chang Lu*,"Abnormal polarization switching phenomenon in a-plane AlxGa1-xN", Optics Express, V18, No. 21, pp21743-21749, 2010. DOI: 10.1364/OE.18.021743
  60. Huai-An Chin, I-Chun Cheng*, Chih-I Huang , Yuh-Renn. Wu, Wen-Sen Lu, Wei-Li Lee, Jian Z. Chen, Kuo-Chuang Chiu, and Tzer-Shen Lin, "Two dimensional electron gases in polycrystalline MgZnO/ZnO heterostructures grown by rf-sputtering process", Journal of Applied Physics, 108, 054503, 2010. (SCI) DOI:10.1063/1.3475500
  61. T.-H. Cheng, K.-L. Peng, C.-Y. Ko, C.-Y. Chen, H.-S. Lan, Y.-R. Wu, C. W. Liu and H.-H. Tseng, "Strain-enhanced photoluminescence from Ge direct transition", Appl. Phys. Lett., 96, 211108, 2010. (SCI) DOI:10.1063/1.3429085
  62. Hung-Hsun Huang and Yuh-Renn Wu*, "Light Emission Polarization Properties of Semipolar InGaN/GaN Quantum Well", J. Appl. Physics, 107, 053112, 2010. (SCI) DOI: 10.1063/1.3327794
  63. Chih-I Huang, Huai-An Chin, Yuh-Renn Wu*, I-Chun Cheng, Jian Z. Chen, Kuo-Chuang Chiu, and Tzer-Shen Lin, "Mobility Enhancement of Polycrystalline MgZnO/ZnO Thim Film Layer with Modulation Doping and Polarization Effect", IEEE Trans Electron Dev, 57. pp696-703, 2010. (SCI) 10.1109/TED.2009.2039527.
  64. Hung-Hsun Huang and Yuh-Renn Wu*, "Light Emission Polarization Properties of Strained (11-22) semipolarInGaN Quantum Well", Physica status solidi c, Vol. 7, no. 7-8, 2010. (SCI) DOI: 10.1002/pssc.200983456
  65. Cheng-Yu Chang and Yuh-Renn Wu*, "Study of Light Emission Enhancement in Nanostructured InGaN/GaN Quantum Wells", IEEE Journal of Quantum Electronics, 46, 884-889, 2010. (SCI) 10.1109/JQE.2010.2040515.
  66. Kun-Mao Pan, Yun-Wei Cheng, Liang-Yi Chen, Ying-Yuan Huang, Min-Yung Ke, Cheng-Pin Chen, Yuh-Renn Wu, and JianJang Huang;, "Polarization-Dependent Sidewall Light Diffraction of LEDs Surrounded by Nanorod Arrays",IEEE PHOTONICS TECHNOLOGY LETTERS, 21, pp1863-1865,2009 DOI: 10.1109/LPT.2009.2031682 ,
  67. Hung-Husn Huang and Yuh-Renn Wu, "Study of Polarization Properties of Light Emitted from a-plane InGaN/GaN Quantum Well-based Light Emitting Diodes", J. Appl. Phys., 106, 023106, 2009. DOI: 10.1063/1.3176964 ,
  68. Yuh-Renn Wu, Chinghua Chiu, Cheng-Yu Chang, Peichen Yu, and Hao-Chung Kuo, "Size-Dependent Strain Relaxation and Emission Characteristics of InGaN/GaN Nanorod Light Emitting Diodes", IEEE Journal of Selected Topics in Quantum Electronics, 15, pp1226-1233, July-Aug., 2009 DOI: 10.1109/JSTQE.2009.2015583 .
  69. Yuh-Renn Wu, Yih-Yin Lin, Hung-Hsun Huang, and Jasprit Singh, "Electronic and Optical Properties of InGaN Quantum Dot based Emitters for Light Emitting Diodes", Journal of applied physics, 105, 013117, 2009. DOI:10.1063/1.3065274
  70. Yuh-Renn Wu, Peichen Yu, C.H. Chiu, Cheng-Yu Chang, and H.C. Kuo ,"Analysis of Strain Relaxation and Emission Spectrum of A Free-Standing GaN-based Nanopillar," proceeding of SPIE, Vol 7058, p70580G , 2008.
  71. Peichen Yu , C. H. Chiu , Yuh-Renn Wu, H. H. Yen, J. R. Chen, C. C. Kao, Han-Wei Yang, H. C. Kuo, T. C. Lu, and S. C. Wang, " Strain Relaxation Induced Micro-Photoluminescence Characteristics of a Single InGaN-based Nanopillar Fabricated by Focused Ion Beam Milling " Appl. Phys. Lett., vol 93, p081110, 2008.
  72. J. W. Chung, X. Zhao, Y.-R. Wu, J. Singh, and T. Palacios "Effect of image charges in the drain delay of AlGaN/GaN high electron mobility transistors", Appl. Phys. Lett., vol 92, P093502, 2008.
  73. C. Y. Liu, A. Datta, N. W. Liu, Y. R. Wu, H. H. Wang, T. H. Chuang, and Y. L. Wang "Enhanced growth of anodic alumina nanochannels on Ga-ion pre-irradiated aluminum" J. Vac. Sci. Technol. B, V26, pp651-654, 2008.
  74. Yuh-Renn Wu, John M. Hinckley, and Jasprit Singh "Extraction of Transport Dynamics in AlGaN/GaN HFETs", Journal of Electronic Materials, Vol.37, No. 5, pp578-584, 2008.
  75. Yuh-Renn Wu, Jasprit Singh "Transient Study of Self-heating Effects in AlGaN/GaN HFETs: Consequence of Carrier Velocities, Temperature, and Device Performance" J. Appl. Phys., vol. 101, p113712, 2007.
  76. S. Y. Yang, Q. Zhan, P. L. Yang, M. P. Cruz, Y. H. Chu, R. Ramesh, Y.-R. Wu, J. Singh, W. Tian, and D. G. Schlom, "Capacitance-voltage characteristics of BiFeO3/SrTiO3/GaN heteroepitaxial structures," Appl. Phys. Lett., vol. 91, p022909, July, 2007.
  77. Yuh-Renn Wu, Madhusudan Singh, and Jasprit Singh," Device Scaling Physics and Channel Velocities in AlGaN-GaN HFETs: Velocities and Effective Gate Length" , IEEE Trans Electron Dev, 53, 588-593, 2006
  78. Yuh-Renn Wu, Madhusudan Singh, and Jasprit Singh," Sources of Transconductance Collapse in III-V nitrides - Consequences of velocity-field relations and source-gate design" , IEEE Trans Electron Dev, vol. 52, no. 6, pp.1048-1054, June, 2005.
  79. Madhusudan Singh, Yuh-Renn Wu and Jasprit Singh," Velocity Overshoot Effects and Scaling Issues in III-V Nitrides ", IEEE Trans Electron Dev, 52, 3, pp 311-316, 2005.
  80. Yuh-Renn Wu and Jasprit Singh," Polar Heterostructure for Multi-function Devices: Theoretical Studies", IEEE Trans Electron Dev, 52, 2,284-293, 2005.
  81. Yuh-Renn Wu and Jasprit Singh,"Metal piezoelectric semiconductor field effect transistors for piezoelectric strain sensors". Appl. Phys. Lett., 85, 2004, pp 1223-1225.
  82. Madhusudan Singh, Yuh-Renn Wu and Jasprit Singh,"Examination of LiNbO3 / nitride heterostructures". Solid-State Electron, 47, 12, 2003, pp 2155-2159.
  83. Yuh-Renn Wu, Madhusudan Singh and Jasprit Singh. " Gate leakage suppression and contact engineering in nitride heterostructures" : J. Appl. Phys., 94 ,5826-5831,2003.
  84. A. Datta, Yuh-Renn Wu, Y. L. Wang," Real-time Observation of Ripple structure formation on a diamond surface under focused ion-beam bombardment", Physical Review B, 63, 125407, 2001.
  85. A. Datta, Yuh-Renn Wu, Y. L. Wang," Gas-assisted focused-ion-beam lithography of a diamond (100) surface", Appl. Phys. Lett. 75, pp2677, 1999.
Conferences
  1. Yuh-Renn Wu*, Chi-Kang Li, Marco Piccardo, Lucio Martinelli, Marcel Filoche, James S. Speck and Claude Weisbuch, ˇ§Challenges in Optoelectronic Device Simulationˇ¨ (TMCS II), Cork, Ireland, Dec. 7-9, 2016 (invited talk)
  2. Yuh-Renn Wu*, Chi-Kang Li, Marco Piccardo, Lucio Martinelli, Marcel Filoche, James S. Speck and Claude Weisbuch, ˇ§Impact of Atomic Disorder in InGaN MQW LEDsˇ¨ International Workshop on Nitride Semiconductors (IWN 2016), Orlando, FL, U.S.A, Oct 2-7, 2016 (invited talk) .
  3. Hao-Tsung Chen, Charng-Gan Tu, Yu-Feng Yao, Chun-Han Lin, Yuh-Renn Wu, Yean-Woei Kiang and Chih-Chung Yang*, ˇ§Combining High Hole Concentration in p-GaN and High Hole Mobility in u-GaN for High p-Type Conductivity in a p-GaN/u-GaN Alternating-Layer Nanostructureˇ¨ International Workshop on Nitride Semiconductors (IWN 2016), Orlando, FL, U.S.A, Oct 2-7, 2016.
  4. Marcel Filoche*, Svitlana Mayboroda, Marco Piccardo, Yuh-Renn Wu, James Speck and Claude Weisbuch , ˇ§A New Approach to Carrier Localization in Disordered Random Alloy Structuresˇ¨, International Workshop on Nitride Semiconductors (IWN 2016), Orlando, FL, U.S.A, Oct 2-7, 2016. (invited talk) .
  5. Yen-Chang Chen, Te-Jen Kung and Yuh-Renn Wu*, ˇ§Modeling and Optimization of InGaN Blue Light Laser Diodesˇ¨, International Workshop on Nitride Semiconductors (IWN 2016), Orlando, FL, U.S.A, Oct 2-7, 2016.
  6. Yuh-Renn Wu* and Kuan-Ying Ho ˇ§Numerical Modeling and Optomization of PEDOT:PSS/Si Nanostructure Hybrid Solar Cellˇ¨ , PIERS 2016 in Shanghai, China, Aug. 7-11. Invited paper
  7. Kuan-Ying Ho and Yuh-Renn Wu*, "Numerical Analysis and Optimization of PEDOT:PSS/Si Nanowire Hybrid Solar Cells", 2016 NUSOD, Sydney, Austria, July 11-15.
  8. Te-Jen Kung, Jun-Yu Huang, and Yuh-Renn Wu*, "Modeling of Random Dopant Effects of Organic Light Emitting Diode with Two Dimensional Simulation", 2016 NUSOD, Sydney, Austria, July 11-15.
  9. Yen-Chang Chen, Te-Jen Kung, and Yuh-Renn Wu*, "Optimization of the Gain Curve of the InGaN Blue Light Laser Diode", 2016 NUSOD, Sydney, Austria, July 11-15.
  10. Kuan-Ying Ho, I-Hsin Lu, Yuh-Renn Wu* ˇ§Development of numerical modeling program for organic/inorganic hybrid solar cells by including tail/interfacial states modelsˇ¨, 2016 SPIE Photonic West, San Francisco, Feb 13-18, 2016. OPTO, 974308-1~974308-7. DOI: 10.1117/12.2211904.
  11. Chi-Kang Li, Li-Shuo Lu, Chen-Kuo Wu, Chung-Cheng Hsu, Yuh-Renn Wu*, ˇ§3D numerical modeling of the carrier transport and radiative efficiency for InGaN/GaN light-emitting diodes with V-shaped pitsˇ¨ 2016 SPIE Photonic West, San Francisco, Feb 13-18, 2016.
  12. Claude Weisbuch, Marco Piccardo, Marcel Filoche, Chi-Kang Li, Yuh-Renn Wu, Lucio Martinelli, J. Perretti, and James S. Speck, ˇ§3D modeling of intrinsic disorder in InGaN/GaN heterostructuresˇ¨, 2016 SPIE Photonic West, San Francisco, Feb 13-18, 2016. (Invited Conference Paper).
  13. Chen-Kuo Wu, Chung-Cheng Hsu, Chi-Kang Li, Tien-Chang Lu, and Yuh-Renn Wu*,ˇ¨ 3D numerical analysis of carrier transport in light emission diodes with V-shaped pitsˇ§, ISGN-6, Hamamatsu, Japan, 11/8-11/13, 2015.
  14. Chen-Kuo Wu, Chi-Kang Li, and Yuh-Renn Wu, ˇ§Investigation of Carrier Transport in Nitride Based LED by Considering the Random Alloy Fluctuationˇ¨, 14th International Conference on Numerical Simulation of Optoelectronic Devices, Taipei, Taiwan, Sep. 7-11, 2015.
  15. Chung-Cheng Hsu, Chen-Kuo Wu, Chi-Kang Li, Tien-Chang Lu, and Yuh-Renn Wu,ˇ¨3D Finite Element Strain Analysis of V-Shaped Pits in Light Emitting Diodesˇ¨, 14th International Conference on Numerical Simulation of Optoelectronic Devices, Taipei, Taiwan, Sep. 7-11, 2015.
  16. I-Hsin Lu and Yuh-Renn Wu ; Modeling for Carrier Transportation in Organic Light-emitting Diode by Considering Effective Tail Statesˇ¨, 14th International Conference on Numerical Simulation of Optoelectronic Devices, Taipei, Taiwan, Sep. 7-11, 2015.
  17. Hung Lin, Chi-kang Li and Yuh-Renn Wu,ˇ¨ Development of Quantum Transport Simulation Model by Considering Phonon Scattering in Nanowire Deviceˇ¨, 14th International Conference on Numerical Simulation of Optoelectronic Devices, Taipei, Taiwan, Sep. 7-11, 2015.
  18. Xinhui Chen and Yuh-Renn Wu, ˇ§ Designing of p-AlGaN super lattice structure as the p-contact and transparent layer in AlGaN UVLEDsˇ¨, 14th International Conference on Numerical Simulation of Optoelectronic Devices, Taipei, Taiwan, Sep. 7-11, 2015.
  19. Kuan-Ying Ho, Chung-Yu Hong, Peichen Yu, and Yuh-Renn Wu, ˇ§ Optimization of All-Back-Contact GaAs Solar Cellsˇ¨, 14th International Conference on Numerical Simulation of Optoelectronic Devices, Taipei, Taiwan, Sep. 7-11, 2015.
  20. Yuh-Renn Wu, Chen-Kuo Wu, Chi-Kang Li, David A. Browne, and James S. Speck, ˇ§Study of Percolation Transport in the InGaN/AlGaN LEDs with Random Alloy Fluctuationˇ¨, CLEO-PR 2015, Busan, Korea. 8/24-8/28 (Invited Conference Paper)
  21. I-Hsin Lu and Yuh-Renn Wu, ˇ§Modeling for carrier transportation in organic light-emitting diode by considering effective tail statesˇ¨ 22nd International Workshop on Active-Matrix Flatpanel Displays and Devices (AM-FPD), 2015. 7/1-7/3 Kyoto, Japan
  22. Yuh-Renn Wu, Chen-KuoWu, Chung-ChengHsu, and JamesS.Speck, ˇ¨Multidimensional Numerical Modeling on the Influence of Random Alloy Fluctuation in InGaN Quantum Well LED to the Transport Behaviorˇ¨, Applied Mathematics and Simulation for Semiconductors, WIAS, Berlin, Germany, March 11-13, 2015. (Invited Conference Paper)
  23. Hui-Hsin Hsiao, Hung-Chun Chang, and Yuh-Renn Wu*,ˇ§Design of nano-pattern reflectors for thin-film solar cells based on three-dimensional optical and electrical modelingˇ¨, SPIE Photonic West, San Francisco, CA, Feb.7-12, 2015.
  24. Chen-Kuo Wu, Tsung-Jui Yang, Claude Weisbuch, James S. Speck, and Yuh-Renn Wu*, ˇ§Carrier transport in the nonpolar and c-plane InGaN quantum well by considering the indium fluctuation effectsˇ¨, SPIE Photonic West, San Francisco, CA, Feb.7-12, 2015.
  25. Xinhui Chen and Yuh-Renn Wu*, ˇ§Numerical study of current spreading and light extraction in deep UV light-emitting diode, SPIE Photonic West, San Francisco, CA, Feb.7-12, 2015.
  26. Chen Kuo Wu, James S. Speck, and Yuh-Renn Wu*, ˇ§Analysis of Electron Percolation in the RandomAlloy AlGaN Barrier Layerˇ¨ 10th International Symposium on Semiconductor Light Emitting Devices, Kaohsiung, Taiwan, Dec. 14-19, 2014.
  27. Chung-Cheng Hsu and Yuh-Renn Wu*, ˇ§3D Finite Element Strain Analysis of InGaN Quantum Well with Indium Fluctuationsˇ¨, 10th International Symposium on Semiconductor Light Emitting Devices, Kaohsiung, Taiwan, Dec. 14-19, 2014.
  28. Hui-Hsin Hisao, Hung-Chun Chang, and Yuh-Renn Wu*, ˇ§Design of Light Trapping Nanopatterned Solar Cells Based on Three Dimensional Optical and Electrical Modelingˇ¨, 14th International Conference on Numerical Simulation of Optoelectronic Devices, Palma de Mallorca, Spain, Sep. 1-4, 2014.
  29. Chao-Wei Wu and Yuh-Renn Wu*, ˇ§Thermoelectric Characteristic of the Rough InN/GaN CoreShell Nanowireˇ¨, 2014 International Workshop on nitride semiconductor, Wroclaw, Poland, Aug.24-29, 2014.
  30. Tsung-Jui Yang, Yen-Chun Lin, James S. Speck, and Yuh-Renn Wu*, ˇ§3D analysis of Random Alloy Fluctuation in InGaN Quantum Well to the Carrier Transport, Tunneling, and Efficiencyˇ¨ 2014 International Workshop on nitride semiconductor, Wroclaw, Poland, Aug.24-29, 2014.
  31. David Browne, Baishakhi Mazumder, Yuh-Renn Wu and James S. Speck, ˇ§Investigation of Electron Transport through InGaN Quantum Well Structuresˇ¨, 14th Electronic Materials Conference, Santa Barbara, USA, June 25-27, 2014
  32. Erin Kyle, Stephen Kaun, Yuhrenn Wu, and James Speck, ˇ§Dislocation-Related Scattering in High Mobility GaN Grown by Ammonia-Based Molecular Beam Epitaxyˇ¨ 14th Electronic Materials Conference, Santa Barbara, USA, June 25-27, 2014
  33. Chi-Kang Li, Maarten Rosmeulen, Eddy Simoen, and Yuh-Renn Wu*, ˇ§Study on the Optimization for Current Spreading Effect of Lateral GaN/InGaN LEDs by Modulation of Transparent Conducting Layerˇ¨, WLED-5, Jeju, Korea, June 1-5, 2014.
  34. Tsung-Jui Yang, Jim. Speck, and Yuh-Renn Wu*, ˇ§Influence of nanoscale indium fluctuation in the InGaN quantum-well LED to the efficiency droop with a fully 3D simulation model,ˇ¨ SPIE Photonic West, San Francisco, CA, Feb. 2014
  35. Da-Wei Lin, Yuh-Renn Wu, Yu-Ting Kang, Shu-ting Yeh, Yu-Lin Tsai, Gou-Chung Chi, Hao-Chung Kuo, ˇ§Analyzing the correlation between nanoscale indium fluctuation in multiple quantum wells and efficiency droop behavior for InGaN-based light-emitting diodes grown on GaN substrate and sapphire,ˇ¨ SPIE Photonic West, San Francisco, CA, Feb. 2014
  36. Yuh-Renn Wu*, ˇ§ Influences of nanoscale indium fluctuation in the InGaN quantum well LED to the carrier transport, radiation efficiency, and droop effectˇ¨ ,2013 EMN Fall Meeting, Orlando, FL, Dec. 7-10, 2013. (Invited Paper)
  37. Shu-Ting Yeh, Kai-Lun Chi , Jin-Wci Shi, and Yuh-Renn Wu,''Numerical Study on the Optimization of a GaN-Based Dual Color Light-Emitting Diode with P-Type Insertion Layer for Balancing Two-Color Intensities'', The 10th International conferences on nitride semiconductor, National Harbor, MD, Aug. 25-30, 2013.
  38. David Browne, Yuh-Renn Wu, and James S. Speck, ''Investigation of Electron Transport through Unipolar InGaN Quantum Well Structures'' ,The 10th International conferences on nitride semiconductor, National Harbor, MD, Aug. 25-30, 2013.
  39. Digbijoy N. Nath, Zhichao Yang, Pil S. Park, Chun Y. Lee, Yuh R. Yu, and Siddharth Rajan, ''Unipolar Vertical Transport Characteristics in III-Nitrides'' The 10th International conferences on nitride semiconductor, National Harbor, MD, Aug. 25-30, 2013.
  40. Chi-Kang Li and Yuh-Renn Wu, ''Three Dimensional Numerical Study on the Efficiency of a Core-shell InGaN/GaN Multiple Quantum Well Nanowire LED'', 13th International Conference on Numerical Simulation of Optoelectronic Devices, Vancouver, Canada, Aug. 19-22, 2013.
  41. Yuh-Renn Wu, Shu-ting Yeh, Da-Wei Lin, Chi-kang Li, Hao-Chung Kuo, and James S. Speck, ''Influences of Indium Fluctuation to the Carrier Transport, Auger Recombination, and Efficiency Droop'', 13th International Conference on Numerical Simulation of Optoelectronic Devices, Vancouver, Canada, Aug. 19-22, 2013.
  42. Shu-Ting Yeh and Yuh-Renn Wu , ''Study of Light Emission Polarization Properties of Semipolar InGaN/GaN Quantum Well Under Different Strain Conditions'', CLEO-PR, Kyoto, Japan, June 30-July 4, 2013.
  43. Yu-Min Liao, Hsiao-Lun Wang, Yuh-Renn Wu*, and Chao-Hsin Wu, ''The Dependence of Base Dynamics and Current Gain in the InGaAs/GaAs Light Emitting Transistors'', 40th international symposium on compound semiconductor, Kobe, Japan, May 19-23, 2013.
  44. Chun-Yao Lee, Huai-Te Pan, Yu-Chih Cheng, Yuh-Renn Wu, Peichen Yu, ''Optical and electrical characteristics of silicon nanocone: Polymer hybrid heterojunction solar cells'', SPIE Photonic West, San Francisco, CA, Feb 2-7, 2013.
  45. Pei-Wen Lin, Sih-Chen Lu, Yu-Min Liao, Chin-Yi Chen, Yuh-Renn Wu, Yun-Chorng Chang, ''Economic fabrication of optoelectronic devices with novel nanostructures'', SPIE Photonic West, San Francisco, CA, Feb 2-7, 2013.
  46. Pradeep N. Senanayake, Chung-Hong Hung, Alan Farrell, David A. Ramirez, Joshua N. Shapiro, Chi-Kang Li, Yuh-Renn Wu, Majeed Hayat, and Diana L. Huffaker, ''Nanopillar optical antenna avalanche detectors for the development of single photon detectors'', SPIE Photonic West, San Francisco, CA, Feb 2-7, 2013.
  47. Yuh-Renn Wu*, Ravi Shivaraman, Kuang-Chung Wang, Chih-Chien Pan, and James S Speck "Predicting Physical Properties of InGaN LEDs from Atomic Scale Structure", International Workshop on Nitride Semiconductors, Sapporo, Japan, Oct 14-19, 2012.
  48. Jeng-Wei Yu, Chi-Kang Li, Po-Chun Yeh, Yuh-Renn Wu, and Lung-Han Peng*, "Ga2O3/GaN single nanowire MOSFET with cut-off frequency ~150GHz", International Workshop on Nitride Semiconductors, Sapporo, Japan, Oct 14-19, 2012.
  49. Chi-Kang Li, Jeng-Wei Yu, Lung-Han Peng, and Yuh-Renn Wu*, "Study on 50nm Gate Length of Ga2O3/GaN Nanowire Field Effect Transistor", International Workshop on Nitride Semiconductors, Sapporo, Japan, Oct 14-19, 2012
  50. Chi-Kang Li, Hung-Chih Yang, Ta-Cheng Hsu, Yu-Jiun Shen, Ai-Sen Liu, and Yuh-Renn Wu* "Study on Electrical Properties of a Coreshell InGaN/GaN Multiple Quantum Wells Nanowire LED", International Workshop on Nitride Semiconductors, Sapporo, Japan, Oct 14-19, 2012.
  51. Chin-Yi Chen and Yuh-Renn Wu*, "Studies of Scaling Issue in Tri-gate AlGaN/GaN Nanowire Transistors", Electronic Materials Conference, University Park, PA, June 20-22, 2012.
  52. Yu-Chih Cheng, Ting-Gang Chen, Feng-Yu Chang, Bo-Yu Huang, Huai-Te Pan, Peichen Yu, Chi-Kang Li, and Yuh-Renn Wu, "Fabrication and Modeling of Large-Scale Silicon Nanowire Solar Cells for Thin-Film Photovoltaics", 38th IEEE Photovoltaic Specialists Conference, Austin, June 3-8, 2012.
  53. Ming-Han Hsieh, Yuh-Renn Wu*, and Jasprit Singh "The Effect of Tailoring Electron/Hole Blocking Layers on the Photovoltaic Performance of the Single-Junction Solar Cells", 38th IEEE Photovoltaic Specialists Conference, Austin, June 3-8, 2012
  54. Ming-Han Hsieh and Yuh-Renn Wu*, "Numerical Modeling of InxGa1.xN/Silicon Multijunction Tandem Solar Cell", 38th IEEE Photovoltaic Specialists Conference, Austin, June 3-8, 2012
  55. Kuang-Chung Wang and Yuh-Renn Wu*, "Transition Rate in the InGaN Quantum Dot Intermediate-Band Solar Cell", 38th IEEE Photovoltaic Specialists Conference, Austin, June 3-8, 2012
  56. Yuh-Renn Wu*, Chang-Pei Wang, Kuang-Chung Wang, and James S. Speck, "Influences of Indium Fluctuation to carrier transport and the Current-voltage Turn-on Behavior in the InGaN Quantum Well LEDs", CLEO: 2012, San Jose, May 6-11 2012.
  57. Chang-Pei Wang and Yuh-Renn Wu*, "Study of Optical Anisotropy of c-plane/m-plane Ultra-violet LED and Laser Diode by k.p Method" CLEO: 2012, San Jose, May 6-11 2012.
  58. Kuang-Chung Wang and Yuh-Renn Wu*, "Intersubband and intrasubband transition in InGaN quantum dot for solar cell application", SPIE Photonic West, San Francisco Jan. 22-27, 2012.
  59. Chi-Kang Li and Yuh-Renn Wu*, "Study of enhancement for the current spreading effect in vertical GaN/InGaN LEDs", 8123-61, SPIE Optics + Photonics, San Diego, Aug 20-15, 2011
  60. Yuh-Renn Wu*, Chi-Kang Li, Chao-wei Wu, and Jasprit Singh, "Study of Carrier Leakage, Hot Carriers, and Radiative Efficiency of InGaN LEDs with Monte Carlo Method", International Conference on Nitride Semiconductors, Glasgow, UK, July 10-15, 2011.
  61. Guan-Jung Lai, Chi-Kang Li, and Yuh-Renn Wu*,"Study of Light Extraction Efficiency of Vertical InGaN Light Emitting Diodes with Different Textured Surfaces and Electrode Contacts", International Conference on Nitride Semiconductors, Glasgow, UK, July 10-15, 2011.
  62. Chi-Kang Li, Jeng-Wei Yu, Lung-Han Peng, and Yuh-Renn Wu*, "Scaling Performance Study of Ga2O3/GaN Nanowire Field Effect Transistor with 3D Finite Element Solver", Asian-pacific wide bandgap workshop (APWS), Toba, Mie, Japan, May 22-26, 2011.
  63. Yuh-Renn Wu*, Chi-kang Li, I-Lin Lu, and Jasprit Singh, "Study of Vertical and Lateral Carrier Dynamic in the InGaN/GaN Quantum Well LEDs for the, Defect Density, Carrier Leakage, and Hot Electron Effect with Monte Carlo Method", Asian-pacific wide bandgap workshop (APWS), Toba, Mie, May 22-26, 2011.
  64. Hung-Hsun Huang and Yuh-Renn Wu*, "Thermoelectric properties of InGaN/GaN superlattice", MRS 2011 Spring Meeting, San Francisco, April 22-27, 2011.
  65. Chi-Kang Li and Yuh-Renn Wu*, "Current spreading effect in vertical GaN/InGaN LEDs", SPIE Photonic West, San Francisco, California, United States, Jan 22-27, 2011.
  66. Jeng-Wei Yu, Yuh-Renn Wu, Jian-Jang Huang, and Lung-Han Peng*, "100GHz depletion-mode Ga2O3/GaN single nanowire MOSFET by photo-enhanced chemical oxidation method" International Electron Devices Meeting (IEDM) 2010, Dec. 6-8, San Francisco, CA.
  67. Yen-Chun Lee, Hung-Hsun Huang, Yuh-Renn Wu, and Peichen Yu*, "Manipulative Polarization of a-plane InGaN/GaN Photonic Crystals for Enhanced Spontaneous Emission", 16th Microoptics conference (MOC), Hsinchu, Taiwan, Oct. 30-Nov. 3, 2010. .Best student paper award)
  68. Jeng-Wei Yu, Yuh-Renn Wu, Jian-Jang Huang, and Lung-Han Peng*,"75GHz Ga2O3/GaN Single Nanowire Metal-Oxide-Semiconductor field-effect Transistors", IEEE Compound Semiconductor Integrated Circuit Symposium (CSICS) 2010, Oct. 3-6, Monterey, CA. 10.1109/CSICS.2010.5619673
  69. Yen-Chun Lee, Hung-Hsun Huang, Yuh-Renn Wu, and Peichen Yu*, "Manipulative Polarization of a-plane InGaN/GaN Photonic Crystals for Enhanced Spontaneous Emission", International conference on Solid State Devices and Materials (SSDM), Tokyo, Japan, Sept. 22-24, 2010.
  70. I-Lin Lu, Yuh-Renn Wu*, and Jasprit Singh, "Study the role of dislocation, indium composition, and radiative efficiency on the InGaN/GaN LEDs with Monte Carlo method", International Workshop of Nitride Semiconductor (IWN), Tampa, FL., Sept. 19-24, 2010.
  71. Hung-Hsun Huang and Yuh-Renn Wu*,"Study of Phonon Properties of Indium Nitride", International Workshop of Nitride Semiconductor (IWN), Tampa, FL., Sept. 19-24, 2010.
  72. Po-Yuan Deng, Hung-Hsun Huang, and Yuh-Renn Wu*,"Study of Polarization Properties of Light Emitted from Tensile Strained InGaN/AlInN Quantum Well", CLEO, 2010, May 16-21, San Jose, CA.
  73. Yuh-Renn Wu* and Pei-Cheng Ku, "Nonpolar InGaN quantum dots for semiconductor quantum light sources", SPIE Photonic West, San Francisco, California, United States, Jan 23-28, 2010.
  74. I-Lin Lu, Yuh-Renn Wu*, John Hinckley, and Jasprit Singh, "Role of interface roughness on lateral transport in InGaN/GaN LEDs: diffusion length, dislocation spacing, and radiative efficiency", SPIE Photonic West, San Francisco, California, United States, Jan 23-28, 2010.
  75. Yuh-Renn Wu*, Hung-Hsun Huang, Cheng-Yu Chang , and Chi-Kang Li, "Strain Engineering in InGaN/GaN Light Emitting Diodes", Internal Workship of Physics on Semiconductor Devices, New Delhi, India, Dec15-19, 2009. (invited).
  76. Chi-Kang Li and Yuh-Renn Wu*, "hree Dimensional Modeling of Junction Temperature and Current flow in High Power InGaN/GaN Light Emission Diodes Using Finite Element Methods", 2nd White LEDs 2009, Taipei, 2009.
  77. Po-Yuan Dang, Hung-Hsun Huang, and Yuh-Renn Wu*, "Light Emission Polarization Properties of a Tensile strained InGaN/AlInN Quantum Well", 2nd White LEDs 2009, Taipei, 2009.
  78. Huai-An Chin, Chih-I Huang, Yuh-Renn Wu, I-Chun Cheng*, Jian Z. Chen, Kuo-Chuang Chiu, and Tzer-Shen Lin, "Influences of Polarization Effects in the Electrical Properties of Polycrystalline MgZnO/ZnO Heterostructure.", MRS 2009 Fall Meeting, Boston, 2009.
  79. Hung-Hsun Huang and Yuh-Renn Wu*, "Study of Light Emission Polarization Properties of Strained inGaN Alloy Films on GaN Substrates With Different Growth Orientations", International Conference on Nitride Semiconductors, JeJu, Korea, Oct 18-23, 2009.
  80. Wei Lun Oo, Heribert Eisele, George I. Haddad, Yuh-Renn Wu, Roger D. Pollard, "Schottky Barrier Heights on AlGaN/GaN Heterojunctions and Their Effect on High-Performance GaN TUNNETT Devices.", 2nd UK/Europe-China Workshop on Millimetre Waves and Terahertz Technologies, Oct. 19-21, Ruthford Appleton Labortarory, UK.
  81. Jacob Melby*, Mahak Khandelwal1, Robert Davis, and Yuh-Renn Wu, "Mechanism of Interaction between Hydrogen and the Two Dimensional Electron Gas in AlGaN/GaN High Electron Mobility Transistors", Electronic Material Conference, Penn State University, PA, June 24-26, 2009.
  82. Hung-Hsun Huang, and Yuh-Renn Wu, "Light Emission Polarization Properties of a-plane InGaN/GaN Quantum Wells", CLEO 09, May 31-June 5, 2009, Baltimore, USA.
  83. Cheng-Yu Chan g and Yuh-Renn Wu," Analysis of Etching Depth Dependence of Emission Properties from InGaN/GaN Light Emitting Diodes with Nanohole Arrays: Roles of Strain Relaxation and Surface States", CLEO 09, May 31-June 5, 2009, Baltimore, USA.
  84. ChingHua Chiu, Peichen Yu, H. C. Kuo, T. C. Lu, S. C. Wang, C. Y. Chang, Y. R. Wu, "Strain Relaxation and Emission Characteristics of Size-Dependent InGaN/GaN Nanorod Arrays", CLEO 09, May 31-June 5, 2009, Baltimore, USA.
  85. Chih-I Huang, Yuh-Renn Wu, I-Chun Cheng, Jian Z. Chen, Kuc-Chuang Chiu, and Tzer-Shen Lin, "Mobility Study of Polycrystalline MgZnO/ZnO Thin Film Layers with Monte Carlo Method", 13th Internal workshop on Computational Electronics 2009, May 27-29, 2009, Beijing, China.
  86. Chi-Kang Li, Yuh-Renn Wu, and Jasprit Singh, "Modeling of Junction Temperature and Current flow in High Power InGaN/GaN Light Emission Diodes Using Finite Element Methods", 13th Internal workshop on Computational Electronics 2009, May 27-29, 2009, Beijing, China.
  87. Hung-hsun Huang, and Yuh-Renn Wu, "Light Emission Polarization Properties of a-plane InGaN/GaN Quantum Wells", APS march meeting, March 16-20, 2009, Pittsburgh, Pennsylvania.
  88. Jacob Melby, Jason Gu, Li Huang, Yuhrenn Wu, Lisa Porter, Robert Davis, "Reduction of the Specific Contact Resistance in p-type GaN-based Devices via Polarization Doping", APS march meeting, March 16-20, 2009, Pittsburgh, Pennsylvania.<\LI>
  89. Jason Gu, Mahak Khandelwal, Jacob Melby, Michael Steeves, Yuh-Renn Wu, Robert Lad, and Robert F. Davis, "Mechanism of Interaction between Hydrogen and the Two-dimensional Electron Gas in AlGaN/GaN High Electron Mobility Transistors", APS march meeting, March 16-20, 2009, Pittsburgh, Pennsylvania.<\LI>
  90. Cheng-Yu Chang and, Yuh-Renn Wu, "Strain Relaxation, Barrier Width, and Surface Effects in InGaN/GaN Nanocolumn LEDs", Poster, International conference on optics and photonics in Taiwan 2008, Taipei, Dec. 5-6, 2008. (Student Paper Aaward).
  91. Hung-Hsun Huang and Yuh-Renn Wu, "Study of Light Emission Polarization Properties of A-Plane InGaN/GaN Quantum Wells", Poster, International conference on optics and photonics in Taiwan 2008, Taipei, Dec. 5-6, 2008.
  92. Chi-Kang Li and, Yuh-Renn Wu, "Three-Dimensional Thermal Modeling of High Power LED Chips", Poster, International conference on optics and photonics in Taiwan 2008, Taipei, Dec. 5-6, 2008.
  93. Chih-I Huang and Yuh-Renn Wu "Mobility study of ZnO Transparent Conductive Oxides Layers with Monte Carlo Method", Poster, International conference on optics and photonics in Taiwan 2008, Taipei, Dec. 5-6, 2008.
  94. "Analysis of Strain Relaxation and Emission Spectrum of A Free-Standing GaN-based Nanopillar," Yuh-Renn Wu, Peichen Yu, C.H. Chiu, Cheng-Yu Chang , and H.C. Kuo, SPIE Optics + Photonics, San Diego, Aug 10-14, 2008.
  95. "InGaN Light Emitters: A comparison of Quantum Dotand Quantum Well based devices", Yuh-renn Wu, Yih-Yin Lin, and Jasprit Singh, Conference on Lasers and Electro-Optics, San Jose, May 4-9, 2008.
  96. "Extraction of Transport Dynamics in AlGaN/GaN HFETs through Free Carrier Absorption", Yuh-renn Wu, John Hinckley, and Jasprit Singh, Electronic Material Conference, Notre Dame Unveristy, In, June 20-22, 2007.
  97. "High-Performance Negative Differential Resistance Oscillators and Combiners," H. Eisele, Y-R. Wu, R. Kamoua, and G. I. Haddad, presented at the Seventeenth International Symposium on Space Terahertz Technology, March 21-23, 2007, Pasadena, California.
  98. "How does phonon generation influence AlGaN/GaN HFETs?- Transient and steady state studies ", Poster session, Yuh-renn Wu and Jasprit Singh, Device Research Conference, Penn State Unveristy, PA, June 26-28, 2006.
  99. "Polar Heterostructyre for Multi-function Devices: Theoretical Studies", Poster session, Yuh-renn Wu and Jasprit Singh, Device Research Conference, Notre Dame, IN, June 21-23, 2004.
  100. "Velocity Overshoot Effects and Transit in Times, to be submitted. III-V Nitrides HFETs: a Monter Carlo Study ", Madhusudan Singh, Yuh-Renn Wu and Jasprit Singh. Device Research Conference, Notre Dame, IN, June 21-23, 2004.
  101. Gate leakage suppression and contact engineering in nitride heterostructures: Yuh-Renn Wu, Madhusudan Singh and, Jasprit Singh . Citation (Mat. Res. Soc. Vol. 798:Y11.1 2004), Materials Research Society Fall Meeting, Boston, MA, December 1-5, 2003.
  102. Examination of LiNbO3 / nitride heterostructures : Madhusudan Singh, Yuh-Renn Wu and Jasprit Singh. , 9th International Workshop on Oxide Electronics, St. Petersburg, FL, USA, October 20-23, 2002.
  103. The metal nitride heterojunction structure - a self consistent drift diffusion charge control model : Yuh-Renn Wu, Madhusudan Singh and Jasprit Singh. , American Physical Society March Meeting, Austin, TX, March.